Stop bar



March 15, 1927. 1,621,210

R. J. LANGER STOP BAR Filed Nov. 21, 1925 and prevent the cow from VPatented Mar. 15, 1927.

' itz zie RUDOLPH .1. Lnivemaor MONTICELLO, IOWA; ASSIGNOR, Bizivrn'sivn Ass'IGNMENTs,

TO FRANKLIN EQUIPMENT COMPANY, or oNTIonLno, IOWA, A conroaarrano'n;

IOWA.

STOP BAR.

Application filed November 21,1925.

Hhe present invention relates in general to the care of live stock andmore particularly to a stop bar attachment for stalls, which embodiesnovel features of construction, whereby it can be readily mountedinposition wandwill operate in an effective manner to close the spacebetween the stall post and the stanchion when the latter is opened,putting her head in the wrong place. r

'A- further object of the invention is to provide a stop bar attachmentin which the stop lug or member is independent of the pivotal connectionwith the shift bar, so asto avoid the trouble which might otherwisebecaused by thebending of the bolts at the pivotal connections when thecows push hard against the stop bars. j The invention also contemplatesa stop bar attachment which can be'connected to the stall any time afterthe stall is in the cement, which has positive upper and lower stops toprevent twisting of the stop bar by pressureof the vcow against thesame, and which has a single lock member for holding the stop bar ineither an open or a closed position.

One particular embodiment of the invention will be shown and describedin detail for illustrative purposes although it will be understood thatmany modifications and changes can be made in the details ofconstruction without departing from the spirit of the invention. I

For afull understanding of'the invention reference is to be had to thefollowing deseription and accompanying drawings, in which,

Figure 1 is a front elevation of one side of'the conventional stall withthe stop bar attachment applied thereto and shown in a closed position,portions being broken away and one side of the stanchion being indicatedby dotted lines.

Figure 2 is a stop plan View of the stop bar attachment and adjacentparts of the stall, the stop bar being in a closed position. Figure 3 isa similar view showing the positions assumed by the parts when the stopbar is in an open position.

Figure 4' is an enlarged transverse sectional view on the line 4'4t ofFigure 1, looking in the direction of the arrows.

Figure 5 is an enlarged top' plan view of Serial No. 70,452.

the bracket upon which the lower swinging arm is pivotally mounted.

- Figure 6 is an enlarged top plan view of the lower swinging arm, thestop bar being,

shown in section.

Corresponding and like parts are referred to in the followingdescription and indicated on all of the views of the drawing by like"reference characters. 7

Referring to the drawings, the numeral 1 top rail 2. There-is ordinarilya post l at each side of the stall and a stanchion such; as

that indicated by dotted lines at 3 is suspended from the top rail 2 atan intermediate point between the stall posts. 'VVhen the stanchion isopen there is a considerable space between the closed sidethereof andtheadjacent stall post, and in order to prevent the cow from putting herhead in this space" instead of in the stanchion, a stop bar isfrequently used. After the cow has been secured in the stanchion it isdesirable to swing the stop bar back against the stall partition, asindicated by Figure 3. The stop bar is thus moved out of the way of thecow and the cow can turn her headboth ways, card herself on either sideand lieinaturally.

The stop bar 4 is carried by upperandlower swinging arms 5 andrespectively, which have a similar construction; of the swinging arms isprovided at its innerend with a pivot opening 7, and the pivot openingof the lower swinging arm receives a pivot pin 8 on a bracket 9. Thebracket 9 "Each" so i projects laterally from the lowerportion of 1 thestall post 1 and is provided at one'end thereof with a divided clamp10,by means of which it is securely fastened to the stall post. Thebracket is formed with an-eX- tension 9 which p'rojects beyond the pivotpin 8 and is slightly off-set laterally, being provided with a stop lug'11 which engages the swinging arm 6 to limit the movement thereof whenthe stop bar is in operative position, as shown by Figure 1.

The pivot opening 7 at the inner end of the upper swinging arm 5receives a downwardly projecting pivot pin '12 on a divided clampingcollar 13 which is securely fastenedto the top rail 2. The clamping collar is arrangedon the'top rail so that the upper pivot pin 12 isdirectly over the lower pivot pin 8, thereby providing a pivotalmounting for the stop bar which enables the same to be readily swungeither into or out of operative position. 7

The upper swinging arm 5 is formed with an upwardly projecting stop lug14, having a curved seat lt at the upper end thereof which isada-pted toengage the top railr 2 when the stop bar is in a closed position. A wing15 projects laterally from the stop lug 14 and has an opening thereinwhich loosely receives apivot pin 16projecting from a lateral neck 17 ona sleeve 18. A nut 19 may be applied to the stem 16 to preventwithdrawal of the stem from the opening. A shift bar 20 is receivedwithin the sleeve 18 andsecurely fastened thereto, said shift barextending along the top rail inla substantially parallel relationthereto. There are usually several stalls in .a row and the shift bar 20is'intended to extend along the toprail of all of the stalls and beconnected to the stop bar for each stall, so that all of the'stop barscan be simultaneously moved into an open position or a closed position.The clamping collar 13 is formed at the top thereof with pivot lugs 22.connected by a pivot pin 23, upon which a hooked latch member 24 ismounted, said latch member being adapted to engage the shift bar 20 tohold'the stop bar in either an open position or a closed position. Inthis connection it will be noted that the pivotal or swivel connectionbetween the shift bar and the swinging arm 5 is off-set laterally fromthe swlnging' arm and arranged at such a distance from the pivotalconnection of the swinging arm that the shift bar 20 is the samedistance from the top rail 2 when the stop bar is in an open position ora closed position, and in moving the stop bar 1 from one position. tothe other position the shift bar is moved away from the top rail. Withthis arrangement it will be obvious that the same latch member 24 can beused to lock the stop bar in either an open position or a closedposition. As shown inFiguresl and 2 the latch member 24 is engaging theshift bar 20 to lock the stop bar in a closed position, while as shownby Figure 3,

the latch member is engaging the-shift bar to lock the stop bar in anopen position.

This simplifies the construction and avoids the necessity of providingtwo latch members. There is a positivestop at both the upper and lowerends of the stop bar for limiting the rearward movement thereof so thatpressure of the animal against one end of the stop bar will not bend andtwist the same. Furthermore, the stop means for limiting the movement ofthe bar is independent oft-he pivotal or swivel connection between theshift bar and the stop bar, so

that there is no danger of this pivotal connection being'bentordistorted by a heavy pressure of the animals against the stop bar.

The stop bar can be quickly moved into swinging arms, a support from thetop rail for the upper arm, a, stop bar mounted upon said arms, a stoplug projecting from the upper swinging arm and disposed to engage saidrail to limit the swinging movement of the stop bar, a shift barpivotally mounted upon said stop lug, a lateral bracket projecting froma stall post upon which bracketthe lower arm is pivoted, and a stop onsaid bracket to engage the lower arm. 7

2. A stop bar attachment for stalls, including a stop bar, swinging armscarrying the stop bar, a stop lug projecting from one ofthe swingingarms and adapted'to engage a stall part to limit theswinging movement ofthe stop bar, a shift bar, anda pivotal connection between the shift barand the stop lug, whereby the stop bar can be moved into and outofoperative position by means of the shift bar.

3. A stop bar attachment for stalls, including a stop bar, swinging armscarrying the same, a stop lug projecting from'one of the swinging armsand adapted. to engage a stall part to limit the swinging movement ofthe stop bar, a shift bar, a pivotal connection between the shift barand the stop lug, and a latch member engaging the shift bar to lock thestop bar in shifted position.

4. A stop bar attachment forstalls having a top rail, including a stopbar, a clamp applied to the top rail, a swinging arm pivotally'mountedon the clamp and connected to the upper end of the stop bar, a shift barextending parallel to the top rail of the stall, a lug projecting fromthe swinging arm, means for pivotally connecting the shift bar to thelug in an off-set relation to the arm and at such a distance from thepivot center of the arm that the shift bar will be the same distancefrom the top rail when the stop bar is in either an open or a closedposition, and a latch member mounted upon the railfor engaging the shiftbar to lock the stop bar in either an open or a closed position.

5. A stop bar attachment for stalls having a top rail including a stopbar, a clamp applied to the top rail, a swinging arm pivotally mountedupon the clamp and connected to the stop bar, a stop lug projecting fromthe swinging arm and adapted to engage the top rail to limit theswinging movement of the stop bar, a lateral wing projecting from thestop lug, a shift bar, a pivotal connection between the shift bar andthe lateral wing,

said pivotal connection being off-set from to lock the stop bar ineither an open or a closed position.

6. A stop bar attachment for stalls'having a stall post and a top rail,including a lateral bracket adapted to be secured to the stall post, astop bar, upper and lower swinging arms carrying the stop bar, the lowerswinging arm being pivotally mounted on the lateral bracket, a pivotalmounting for the upper swinging arm, a stop means on the lateral bracketfor limiting the swinging movement of the lower arm when the stop bar isin operative position, and a stop lug projecting from the upper swingingarm and adapted to engage the top rail of the stall when the stop barhas been swung into operative position.

7. A stop bar attachment for stalls having a top rail including a clampadapted to be secured to the top rail, 'a swinging arm pivotally mountedon the clamp, a stop bar secured to the swinging arm, a. laterallyprojecting wing carried by the swinging arm, intermediate its ends, anda shift bar pivotally connected to the said wing'in an offset relationto the swinging arnn 8. A stop bar attachment for stalls having a toprail including a swinging arm, means for pivotally mounting the swingingarm on the top rail, a stop bar secured to the swinging arm,a stop lugon the swinging arm and having a contact face adapted to engage the toprail to limit the swinging movement of the stop bar, and a shift barpivotally connected to the stop lug.

In testimony whereof I affix my signature.

RUDOLPH J. LANGER.

